#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define ps push
#define in insert
#define f first
#define s second
#define nl cout<<"\n"
#define ca(v) for(auto i:v) cout<<i<<" ";
#define cbit(x) __builtin_popcount(x)
#define gcd(a, b) __gcd(a, b)
#define lcm(a, b) (a*b/gcd(a, b))
const int xm[4] = {-1, 1, 0, 0};
const int ym[4] = {0, 0, -1, 1};
const int MOD = 1e9 + 7;
const int MAXN = 5e5 + 5;
const ll POW = 9973;

pair<ll, ll> eval(ll a, ll b, ll c, ll d, ll v, ll t){
    ll cnt = b + d - 1;
    ll last = 0;
    ll x = a;
    ll y = c;
    while(x <= t || y <= t){
        if(x < y){
            if(last + v < x) cnt -= 1;
            last = x;
            x += a;
            cnt += b;
        } else {
            if(last + v < y) cnt -= 1;
            last = y;
            y += c;
            cnt += d;
        }
    }
    return {cnt, last};
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    if (fopen("input.in", "r")) {
        freopen("input.in", "r", stdin);
        freopen("output.out", "w", stdout);
    }
    int T; cin>>T;
    while(T--){
        ll a, b, c, d, v, t;
        cin>>a>>b>>c>>d>>v>>t;
        ll tot = 0;
        if(t % (a * c) == 0){
            ll rep = t / (a * c);
            auto fullres = eval(a,b,c,d,v,a*b-1);
            if(fullres.s + v >= a * c) {
                tot += rep * fullres.f + rep - 1;
                tot += b * d;
            } else {
                tot += rep * fullres.f;
                tot += b * d - 1;
            }
        }
        else if(a * c > t){
            ll rep = t / (a * c);
            ll res = t % (a * c);
            auto fullres = eval(a,b,c,d,v,a*c-1);
            if(fullres.s + v >= a * c) {
                tot += rep * fullres.f + rep - 1;
                tot += eval(a, b, c, d, v, res).f + 1;
            } else {
                tot += rep * fullres.f;
                tot += eval(a, b, c, d, v, res).f;
            }
        }
        else if(a * b < t){
            tot += eval(a, b, c, d, v, t).f;
        }
        cout<<tot<<"\n";
    }

}